Coupling



A. VJ. KNUTSON.

COUPLING.

APPLICATION FILED AuG.25, 1919.

1,888,268. PatentedAug-.-23,192I.

v 2 SHEETS-SHEET-Z.

kFi.3.

UNITED STATI-:s

ALFRED W.' xNUTsoN, or GALESBURG, ILLINOIS, AssIGNoR 'ro yRowrz MANUFAC- TURING COI, A CORPORATION OF ILLINOIS.

COUPLING.

Patented Aug. 23, 1921.

Application led August 25, 1919. Serial No. 319,819.

T 0 all whom it may concern Be it known that I, ALFRED W. KNUTsoN,

a citizen of the United States, and a resident ofv the city of Galesburg, in the county of Knox and State of Illinois, have invented certain new and useful Improvements in Couplings; and I do hereby declare that the following is a full, clear, and exact Adescription of the same, reference being had to the accompanying drawings, and to the numerals of reference marked thereon, which form a part of this specification.

The present invention relates to quickly attachable and detachable couplings the elements of which after being assembled in selected positions relatively to each other are locked or held rigidly inthe desired relation.

The'principal end and object of the invention is to improve generally the construction Vand increase the capacity, utility and efliciency of devices of this character.

A further object of the invention is to provide improved means for supporting aV -line of posts such as the metallic stall posts employed in dairy farms. Y

Another object of the invention is to provide va socket into which the end of a post may be dropped or vpassed and then held in position byfsuitable wedging means.

Other and further `import-ant objects of the invention will be apparent from-the disclosure in the specification and drawings.

The invention (in a preferred form) is illustrated in the drawings and hereinafter more fully described.

In the drawings: Figure 1 is a side elevation of an anchor embodying the features of this invention.

Fig. 2 is an end elevation of the same. Fig. 3 is a Vsectionon the line 3--3 of Fi Fig. 4 is a section on the line 4 4 of Fi 3.

Fig. 5 is a section on the line 5-5 of ig. 6 is a plan view ofthe cap.

Fig. 7 is a side elevation of the cap.

Fig. 8 is a front elevation of a modified form of construction. v

Fig. 9 is a section on the line 9-9 .of Fig. 8. f

. Fig. 10 is a section through another modiication on the line 10-10 of Fig. 1l; and

Fig. 11 is a section on the line 11-11 of Fi 10.

s shown in the drawings:

Referring first to the form of construction shown in Figs. l to 7 inclusive, 3 designates one of a line of supporting stakes such as are usually set in line prior to mounting the anchors. These stakes Vsupport an alinement board 3a, while the stakes 3, alinement board 3a and the anchors 5, supported thereby are all embedded in a mass of concrete 4 which forms the stall-floor or curb.

The anchors or sockets 5 are formed with two communicating compartments, namely,

a socket-like compartment 6 adapted to re-V ceive a post 7, or the like, and a wed e-containing compartment 8 in which a we ge nut 9, and the threaded stem 10 of a wedgingbolt 11 are located. Preferably the compartment 8, is .of such width that the nut 9can slide vertically therein without being able to rotate.

The compartment 6 is provided at its upper portion with a projection 12 and at its lower portion with a projection 13, bot-h conveniently of annular form as shown in Figs.

1 to 7 these Aserving not only as contactbosses against which the post 7 may be forced but also as strengthening ribs for the anchor.

The sides 14 of the compartment 8 are Vprovided each witha wedge-shaped, downwardly and outwardly inclined pressure-lu 15, extending from approximately its vertical mid-length to near its bottom. These lugs are spaced apart from each other to allow the stem 10 of the bolt to pass between. .Extending preferably entirely around the lower edge of the receptacle 5 is a horizontally arranged anchor-flange 17, one function of which is to resist loosening or withdrawal of the anchor from the concrete.

A guide-Bange 18 is provided at the rear edge of the compartment 8 for engagement with the adjacent edge of the alinementboard 8 in order that all the several anchors may be properly set. The alinement board is provided with an aperture 19 preferably a trifie smaller in diameter than a boss 20, projecting downward from the bottom of Vpost by the bolt 11',

Ais projected Vin the cap 23 and 9, a post 7. is substantially square in cross section.

-Figs 8 and 9, ing that the post is circular so that theface of the compartment 6' is'here shown as arcuate.

the anchor 5 so that when the boss has been driven or forced into such aperture the an chor will be supported firmly thereby and by the flange 18 while the concrete is being poured and tamped.V

The upper edge of the anchor 5 is provided with a horizont-ally arranged flange 21 whereon rests the flanges 22 of a cap 23 vand extends a little lower into the chamber.

This tends to thrust the cap lagainst the post 7. v The stem 10 of the locking-bolt 11 andthe head. 28 of the bolt rests on top of the cap, where it is readily accessible.

tion shown in Figs. 8 to 11 inclusive, each of these modifications shows a post,passing transversely through an anchor. In Figs. 8 shown as flat sided and In the anchor as shown, are provided compart- -ments 6 and 8" similar tol thosein the 'anchor 5. vTheanchor is mounted on a support 3, by means of ianges 18 and bolts 29.

Within the anchor are arranged wedge-V shaped pressure-lugs 15, 15 integralwith and projecting from a' wall of the compartment 8. of a nut 9 forced into engagement with the means of its externally head 28.

Figs. 10 and 11 illustrate a structure differing very slightly from therone Vshown in the principal difference bearranged bolt- In these figures the attaching flange of the anchor is indicated by 18, the locked element by 7, the bolt-containing compartment by 8, the locking-nut by 9, the bolt 11 and its head by 28, and the pressure-lugs by 15". These lugs act as a single wedge on which the nut 9 travels.

The operation is as follows: Y The bolt 11 is turned anti-clockwise by means of its head 28 until the bolt and the nutv 9 assume such positions that the post 7 may be passed down through the opening 24 in the cap. The bolt is then rotated in a clock-wise direction. Since the bolt-head 28 ment of the bolt thenut 9 will be drawn upwardly on the loosely through an opening 30- The postis held in place by means which is rotated byv pressure-lugs 15 to thereby force the nut 9 toward the post which is supported by the projections 12 and 13. These projections may of course be dispensed with if desired, when the post 7, will be forced against the wall lof the compartment 6. As the bolt continues nut will be forced into wedging engagement with the post 7 so that the latter is firmly gripped between the nut and the said projections 12 and 13. Simultaneously the bolt-head 28bears on the cap 23 to force its wedge-like projections 25 and 26 into the upper end of the compartment 8 and valso press the flange 22 tightly down upon the upper edge and flange 21 of the receptacle 5.V A reverse operation will release the post 7.

' The operation of the forms of construction shown in Figs. 8 to 11 inclusive is similar to that of Figs. 1V to 7 inclusive,just described so that the operation of these modifications need not be described.

I am `aware that various details of construction may be'variedv through a wideV j range Referring now to the forms of construc-A of this invention and I therefore do not pur- -pose' limiting thepatent granted otherwise' Vthan necessitated by the prior art.

I claim as my invention:

tance than the width of the bolt vto allow the passage of the latter therebetween, a nut on thebolt adapted to engage and slide upwardly along the abutments when the bolt is rotated therein, whereby forced into wedging Vengagement with the post in the socket and the topV member s1- multaneously drawn down onto lthe upper end of the socket.

' 2. A 'device of the type set forth comprising a socket havingY a vertical wall andan opposing wall inclined upwardly and inwardly thereto, 'a bolt having a head adapted to engage the upper part of the'socket, anda nut on the bolt adapted to engage and slideV upwardly along the inclined wall as the bolt is rotated therein, whereby the nut maybe forced into wedging engagementwith a post inserted in the socket.

3. A device of the type set forth compris ing a socket adapted to receive a post, agpart of one wall of the socket and a part of the surface of the post converging toward each other, a bolt havingahead adapted to engage an outer part of the socket and a nut on the bolt adapted to engage and slide between said wall and said surface as the bolt is ro- 1. A device of the type set forthV compristo turn, the

without departing from the principles vsecond aperture spaced apart a greater dis- Y the nut may be izo ' thickest part tated therein, whereby the nut may be forced into wedging engagement with the post.

4. An anchor for a post comprising a cylindrical socket, a rectangular pocket opening int said socket, a wedge on the wall of the pocket opposite the socket having its uppermost, a cover for both Socket and pocket, a bolt through said cover into said pocket, and a nut on said bolt, the width of the pocket being less than the diagonal of said nut, and the width of the nut being greater than the distance from the upper edge of said wedge to said socket.

5. An anchor for a post comprising a cy lindrical socket, a rectangular pocket opening into said socket, a wedge on the wall of the pocket opposite the socket having its thickest part uppermost, a cover for both socket and pocket, a bolt through said cover into said pocket, a nut on said bolt, the width of the pocket being less than the diagonal of said nut, and the width of the nut being greater than the distance from the upper edge of said wedge to said socket, an alining board beneath said anchor, and a flange on said anchor coperating with the edge of said board to position said anchor.

6. An anchor for a post comprising a cylindrical socket, a rectangular pocket.open ing into said socket, a wedge on the wall of the pocket' opposite the socket having its thickest part uppermost, a, cover for both socket and pocket, a bolt through said cover into said pocket, a nut on said bolt, the width of the pocket being less than the diagonal of said nut, and the width of the nut being greater than the distance from the upper edge of said Wedge to said socket, an alining board with a series of holes therein, and a projection on the bottom of said anchor cooperating with one of said holes to position said anchor.

7. An anchor for a post comprising a cylindrical socket, a rectangular pocket opening into said socket, a wedge on the wall of .the pocket opposite the socket having its thickest part uppermost, a cover for both socket and pocket, a bolt through said cover into said pocket, a nut on said bolt, the width of the pocket being less than the diagonal of said nut, and the width of the nut being greater than the distance from the upper edge of said wedge to said socket, an alining board beneath said anchor, a flange on said anchor coperating with the edge of said board to position said anchor, and a bed of concrete inclosing said anchor and alining board.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

ALFRED W. KNUTSON. lVitnesses E. N. SHERMAN, W. G. MATTHEWS. 

